Orm (in Old Norse and in modern Danish, Swedish, Norwegian (bokmål and nynorsk) the word for "snake", "worm" or "dragon") became an Anglo-Saxon personal name during period of the Danelaw. It may refer to:
- Orm, the author of the 12th-century Ormulum
- the commissioner of the Kirkdale sundial
- the Ocean Master, a DC Comics supervillain and half-brother to Aquaman
ORM as an acronym may refer to:
- Oak Ridges Moraine
- Object-relational mapping, a software-programming issue in linking object-oriented code with relational databases
- Object role modeling, a method for conceptual modeling.
- Observatorio del Roque de los Muchachos, an observatory on the island of La Palma
- Online reputation management
- Online research methods
- Operational risk management, a concept for safety in operations planning and execution
- Oromo language ISO 639 code
- Orosomucoid
- Outsourcing relationship management
- Sywell Aerodrome in Northamptonshire, England (IATA airport code)